90909945

素因数分解:

$3^6\times 5^1\times 7^2\times {\mathrm{509}}^1$

素因数の和:546

約数の個数: 84

約数和(自身を含む): 190641060

約数和(自身を除く): 99731115

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 243, 245, 315, 405, 441, 509, 567, 729, 735, 945, 1215, 1323, 1527, 1701, 2205, 2545, 2835, 3563, 3645, 3969, 4581, 5103, 6615, 7635, 8505, 10689, 11907, 13743, 17815, 19845, 22905, 24941, 25515, 32067, 35721, 41229, 53445, 59535, 68715, 74823, 96201, 123687, 124705, 160335, 178605, 206145, 224469, 288603, 371061, 374115, 481005, 618435, 673407, 865809, 1122345, 1443015, 1855305, 2020221, 2597427, 3367035, 4329045, 6060663, 10101105, 12987135, 18181989, 30303315, 90909945]

約数ペア:

[(1, 90909945), (3, 30303315), (5, 18181989), (7, 12987135), (9, 10101105), (15, 6060663), (21, 4329045), (27, 3367035), (35, 2597427), (45, 2020221), (49, 1855305), (63, 1443015), (81, 1122345), (105, 865809), (135, 673407), (147, 618435), (189, 481005), (243, 374115), (245, 371061), (315, 288603), (405, 224469), (441, 206145), (509, 178605), (567, 160335), (729, 124705), (735, 123687), (945, 96201), (1215, 74823), (1323, 68715), (1527, 59535), (1701, 53445), (2205, 41229), (2545, 35721), (2835, 32067), (3563, 25515), (3645, 24941), (3969, 22905), (4581, 19845), (5103, 17815), (6615, 13743), (7635, 11907), (8505, 10689)]